Is there any functional reason that the high end Riedel decanters cost 5 or 10 times then their low end counterparts? What separates the Riedel Amadeo from the O from the Vivant decanter that I can buy at Target or $20? The Amadeo does look very pretty aesthetically and has a wide base for a good surface area, but I cant imagine that this would be easy to clean. The Spiegelau Vino Grande seems like a good deal, though cleaning and pouring would seem to be difficult.
The are the criteria I'm using, in order of importance:
1. Wide base, good surface area, narrow neck
2. Ease of cleaning
4. Ease of pouring
Am I missing anything?
I'd appreciate any comments, suggestions, and personal experience.